/*
 * SpeedoDyno - Speedometer and dynamometer application for Android 
 * Copyright 2013 Guilhem VALENTIN
 * 
 * This file is part of SpeedoDyno
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with SpeedoDyno. If not, see <http://www.gnu.org/licenses/>.
 */
package com.gvalentin.speedodyno.util;

/**
 * Utility methods for manipulating integers
 * @author guilhem
 */
public class IntegerUtil {
	/**
	 * Return first digit of a positive integer
	 */
	public static int getFirstDigit(int nb) {
		if (nb >= 10) {
			// Divide by 10, then do recursive call
			return getFirstDigit(nb / 10);
		}
		return nb;
	}
}
